The Linear ACT-31B is a 1-Channel Block Coded Key Ring Transmitter is designed for use with Linear’s access control products. This super small unit includesa quick-disconnect key ring. This unit will also work on Linear garage door and automatic gate opener receivers that use Mega Code formatted remotes. Programming can by done either by software for Access Control applications or by pressing the learn button on garage door openers or smaller gate access applications.

Block coded transmitters are factory programmed to a sequential series of transmitter ID codes. When used with a Linear access controller, transmitters can be locally or remotely programmed into memory by entering the first and last codes of the block into the system. Facility codes can be selected to further customize the system.